git: 5c55b2f3ba6f - main - x86: directly use clflushopt mnemonic in cpufunc.h

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=5c55b2f3ba6f48575496bde2d4d86272d10a8197

commit 5c55b2f3ba6f48575496bde2d4d86272d10a8197
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2025-09-21 03:03:09 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2025-09-21 03:04:58 +0000

    x86: directly use clflushopt mnemonic in cpufunc.h
    
    We already use clflushopt in support.S, there is no reason to manually
    construct the encoding.  Initially it was done because toolchains did
    not supported the (then) new instruction.
    
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
---
 sys/amd64/include/cpufunc.h | 2 +-
 sys/i386/include/cpufunc.h  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/amd64/include/cpufunc.h b/sys/amd64/include/cpufunc.h
index d180f5c76afb..e6c9f47ea261 100644
--- a/sys/amd64/include/cpufunc.h
+++ b/sys/amd64/include/cpufunc.h
@@ -76,7 +76,7 @@ static __inline void
 clflushopt(u_long addr)
 {
 
-	__asm __volatile(".byte 0x66;clflush %0" : : "m" (*(char *)addr));
+	__asm __volatile("clflushopt %0" : : "m" (*(char *)addr));
 }
 
 static __inline void
diff --git a/sys/i386/include/cpufunc.h b/sys/i386/include/cpufunc.h
index 4bed57b5afbf..b200588b0739 100644
--- a/sys/i386/include/cpufunc.h
+++ b/sys/i386/include/cpufunc.h
@@ -74,7 +74,7 @@ static __inline void
 clflushopt(u_long addr)
 {
 
-	__asm __volatile(".byte 0x66;clflush %0" : : "m" (*(char *)addr));
+	__asm __volatile("clflushopt %0" : : "m" (*(char *)addr));
 }
 
 static __inline void